[音频]China aims to build more than 600,000 5G base stations in 2021. The ministry will ___1__its focus from network "___2__ and popularization" to "___3___ of speed and quality". It also plans to build a "double gigabit" network____4__ covering urban areas and towns where conditions are ____5__ in three years, and promote the ____6___construction and deep coverage of 5G networks in an____7___manner, according to the Ministry.